/**
 * Copyright (c) 2015-2016, Michael Yang 杨福海 (fuhai999@gmail.com).
 * <p>
 * Licensed under the GNU Lesser General Public License (LGPL) ,Version 3.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * <p>
 * http://www.gnu.org/licenses/lgpl-3.0.txt
 * <p>
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package io.jpress.ui.freemarker.tag;

import io.jpress.core.render.freemarker.JTag;
import io.jpress.model.Taxonomy;
import io.jpress.model.query.TaxonomyQuery;
import io.jpress.utils.StringUtils;

import java.math.BigInteger;

public class TaxonomyTag extends JTag {

    public static final String TAG_NAME = "jp.taxonomy";

    @Override
    public void onRender() {

        Taxonomy taxonomy = null;
        BigInteger id = getParamToBigInteger("id");
        if (id != null) {
            taxonomy = TaxonomyQuery.me().findById(id);
        }

        if (taxonomy == null) {
            String slug = getParam("slug");
            String module = getParam("module");
            if (StringUtils.areNotBlank(slug, module)) {
                taxonomy = TaxonomyQuery.me().findBySlugAndModule(slug, module);
            }
        }

        if (taxonomy == null) {
            renderText("");
            return;
        }

        setVariable("taxonomy", taxonomy);
        renderBody();
    }

}
